Key Concepts of Climate Change Explained

What is the main cause of climate change according to the video?

• Changes in Earth's orbit

• Volcanic eruptions

• Human activities

• Natural variations in the sun's output

What is the primary source of warmth on Earth?

• The moon

• The sun

• Volcanoes

• Geothermal energy

Tags

NGSS.HS-ESS1-1

By how much has the concentration of carbon dioxide increased since the Industrial Revolution?

• 50%

• 20%

• 30%

• 40%

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NGSS.HS-ESS2-6

What isotope ratio is used to determine the source of increased CO2 in the atmosphere?

• Carbon-12 to Carbon-14

• Carbon-12 to Carbon-11

• Carbon-12 to Carbon-13

• Carbon-13 to Carbon-14

What percentage of CO2 emissions do volcanoes contribute compared to human activities?

• 1%

• 10%

• 25%

• 50%

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NGSS.HS-ESS3-5

NGSS.HS-ESS3-6

How much have global temperatures increased since 1900?

• Half a degree

• Three degrees

• Two degrees

• Almost a full degree

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NGSS.HS-ESS2-4

NGSS.HS-ESS3-5

What percentage of the heat added to the planet is absorbed by the oceans?

• 100%

• 50%

• 90%

• 70%

How much have ocean levels risen since 1901?

• 4 inches

• 10 inches

• 6 inches

• 8 inches

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NGSS.HS-ESS3-5

What is the projected pH level of the oceans in 100 years?

• 7.8

• 8.2

• 7.0

• 7.4

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NGSS.HS-ESS2-6

NGSS.HS-ESS3-5

What is the potential increase in global temperatures by the end of this century if CO2 emissions continue on their current trends?

• 1-2 degrees

• 5-7 degrees

• 7-10 degrees

• 2.5-5 degrees

Tags

NGSS.HS-ESS2-4

NGSS.HS-ESS2-6

NGSS.HS-ESS3-5